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Cop Forced to Team Up with Jailed Serial Killer Mother to Stop Copycat Murders
11 Sep
Summary
- Cha Soo-yeol, a police detective, must work with his mother Jung Yi-shin, a convicted serial killer, to catch a copycat killer
- Soo-yeol was raised by his grandfather after his mother was imprisoned for 5 murders
- The copycat killer is using the same modus operandi as Soo-yeol's mother, the infamous "Mantis" killer

On September 11, 2025, a police detective named Cha Soo-yeol finds himself in a chilling predicament. His mother, Jung Yi-shin, is a notorious serial killer known as the "Mantis," currently serving time for five murders. Soo-yeol, raised by his grandfather Jeong Hyeon-nam after his mother's imprisonment, has had no relationship with the woman responsible for his traumatic past.
However, a new serial killer has emerged, copying the Mantis' distinctive modus operandi. Soo-yeol is now forced to team up with his mother to capture this copycat and put an end to the killings. As they work together, Soo-yeol must confront his own family history and the violent nature of the woman who gave him life.
The dynamic between the cop and the killer promises to be a captivating one, as the two navigate their complex relationship in the pursuit of justice. Viewers will be on the edge of their seats, wondering how this twisted mother-son partnership will evolve and whether they can put their differences aside to stop the copycat before more lives are lost.